气候变化领域集成服务门户(CCPortal): Numerical Reconstruction of Three Holocene Glacial Events in Qiangyong Valley, Southern Tibetan Plateau and Their Implication for Holocene Climate Changes

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DOI	10.3390/w12113205
	Numerical Reconstruction of Three Holocene Glacial Events in Qiangyong Valley, Southern Tibetan Plateau and Their Implication for Holocene Climate Changes
	Sun, Yong; Xu, Xiangke; Zhang, Lianqing; Liu, Jinhua; Zhang, Xiaolong; Li, Jiule; Pan, Baolin
通讯作者	Xu, XK (通讯作者)
发表日期	2020
EISSN	2073-4441
卷号	12 期号:11
英文摘要	The dating of well-preserved Holocene moraines in the Qiangyong Valley, southern Tibetan Plateau (TP), offers great potential for reconstructing Holocene glacier extents and examining climate changes in the region. Guided by Holocene moraine features, this study used Geographic Information System (GIS) model tools to reconstruct paleo-glacier surfaces and glacier equilibrium line altitude (ELA) depressions for three Holocene glacial stages in the valley. The GIS-based models showed that the Qiangyong Valley contained ice volumes of 8.1 x 10(8), 6.2 x 10(8), and 4.6 x 10(8) m(3) during the early Holocene, Neoglacial, and Little Ice Age (LIA) glacial stages, and that the ELA was decreased by similar to 230 +/- 25, similar to 210 +/- 25, and similar to 165 +/- 25 m, respectively, compared to modern conditions. Furthermore, the summer temperatures were estimated to be 1.56-1.79, 1.37-1.64, and 1.29-1.32 degrees C cooler than present to support the three Holocene glacier extents, based on the evidence that the respective precipitation increased by 20-98, 13-109, and 0.9-11 mm relative to the present, which were derived from the lacustrine pollen data for the southern TP. By comparison, this study found that the amplitudes of the ELA-based summer temperature depressions were much larger than the pollen-based counterparts for the three glacial stages, although the two proxies both showed increasing trends in the reconstructed summer temperatures.
关键词	EQUILIBRIUM-LINE ALTITUDES QUATERNARY GLACIATION SURFACE FLUCTUATIONS PLEISTOCENE BE-10 MOUNTAINS HIMALAYA INDEX TOOL
英文关键词	paleo-glacier reconstruction; equilibrium line altitude; Holocene glacial stages; Qiangyong Valley
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000594307500001
来源期刊	WATER
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259958
推荐引用方式 GB/T 7714	Sun, Yong,Xu, Xiangke,Zhang, Lianqing,et al. Numerical Reconstruction of Three Holocene Glacial Events in Qiangyong Valley, Southern Tibetan Plateau and Their Implication for Holocene Climate Changes[J]. 中国科学院青藏高原研究所,2020,12(11).
APA	Sun, Yong.,Xu, Xiangke.,Zhang, Lianqing.,Liu, Jinhua.,Zhang, Xiaolong.,...&Pan, Baolin.(2020).Numerical Reconstruction of Three Holocene Glacial Events in Qiangyong Valley, Southern Tibetan Plateau and Their Implication for Holocene Climate Changes.WATER,12(11).
MLA	Sun, Yong,et al."Numerical Reconstruction of Three Holocene Glacial Events in Qiangyong Valley, Southern Tibetan Plateau and Their Implication for Holocene Climate Changes".WATER 12.11(2020).